sudo rm -rf /etc/pacman.d/gnupg
sudo pacman-key --init
sudo pacman-key --populate archlinux
# sudo pacman-key --lsign-key "felixonmars@archlinux.org"
sudo pacman-key --refresh-keys
# sudo pacman -Sy archlinux-keyring --noconfirm
# sudo pacman-key --populate archlinuxcn
sudo pacman -Syy archlinux-keyring archlinuxcn-keyring
sudo pacman -Sc --noconfirm
